09:01 AM EDT, 05/27/2026 (MT Newswires) -- Healthcare stocks were mixed premarket Wednesday, with the State Street Health Care Select Sector SPDR ETF (XLV) 0.1% lower and the iShares Biotechnology ETF (IBB) up 0.7%.

Guardant Health ( GH ) shares were up more than 6% after the company said its Shield blood test has been included in the American Cancer Society's updated Colorectal Cancer Screening guidelines.